{"id":"CVE-2026-90033","revision":"ec2e8c1b63484f219a154ae4398e7876","records":[{"revision":"ec2e8c1b63484f219a154ae4398e7876","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-90033","aliases":[],"title":"ALSA: usb-audio: fix OOB write in snd_usbmidi_us122l_output()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb-audio: fix OOB write in snd_usbmidi_us122l_output()\n\nThe snd_usbmidi_us122l_output() picks a count of 2 on anything slower\nthan high speed and never relates it to ep->max_transfer.  The URB\nbuffer holds exactly max_transfer bytes, so a device declaring a one\nbyte bulk endpoint takes two bytes from snd_rawmidi_transmit(), and the\nmemset that pads the rest computes 1 - 2 in int and wraps to SIZE_MAX.\n\nOnly 0x800e and 0x800f are pinned to nine bytes.  The US-122MKII at\n0x0644:0x8021 falls to the default and takes usb_maxpacket(), which the\nUSB core only clamps downward.\n\nThe akai and novation output ops in this file were given the same guard\nrecently.  Do the same here.","state":0,"publishedAt":"2026-09-16T10:33:33.899+00:00","modifiedAt":"2026-10-19T08:56:50.205+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"sound/usb/midi.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"030a07e441296c372f946cd4065b5d831d8dc40c\",\n                            \"lessThan\": \"5538daf2a5cc80ac3f3e913c0db045d92d995d40\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"030a07e441296c372f946cd4065b5d831d8dc40c\",\n                            \"lessThan\": \"a441a8e52148c91c2f2a91f42e3b9bc961a13a4b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"030a07e441296c372f946cd4065b5d831d8dc40c\",\n                            \"lessThan\": \"2dae0e3a59e31f78222279d544b98e747cd1fbff\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"030a07e441296c372f946cd4065b5d831d8dc40c\",\n                            \"lessThan\": \"1d4add2b832b56f81bb0eab065ec35c610343018\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"030a07e441296c372f946cd4065b5d831d8dc40c\",\n                            \"lessThan\": \"de6d252f115be887a701c09a05cdb076f3a590c9\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"030a07e441296c372f946cd4065b5d831d8dc40c\",\n                            \"lessThan\": \"9392a2c346762ffee8edd1ba8bac50d2e24a2ed7\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"030a07e441296c372f946cd4065b5d831d8dc40c\",\n                            \"lessThan\": \"9d81885d97cba7796d1f8edc88f2499c8296f5b9\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"030a07e441296c372f946cd4065b5d831d8dc40c\",\n                            \"lessThan\": \"e4637ce34607f1733a34a57294966d26b263e626\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"sound/usb/midi.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"2.6.28\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"2.6.28\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.270\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.221\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.188\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.157\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.110\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.51\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.5\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/5538daf2a5cc80ac3f3e913c0db045d92d995d40","https://git.kernel.org/stable/c/a441a8e52148c91c2f2a91f42e3b9bc961a13a4b","https://git.kernel.org/stable/c/2dae0e3a59e31f78222279d544b98e747cd1fbff","https://git.kernel.org/stable/c/1d4add2b832b56f81bb0eab065ec35c610343018","https://git.kernel.org/stable/c/de6d252f115be887a701c09a05cdb076f3a590c9","https://git.kernel.org/stable/c/9392a2c346762ffee8edd1ba8bac50d2e24a2ed7","https://git.kernel.org/stable/c/9d81885d97cba7796d1f8edc88f2499c8296f5b9","https://git.kernel.org/stable/c/e4637ce34607f1733a34a57294966d26b263e626"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-90033","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-90033","identifiers":["CVE-2026-90033"]},"retained":false,"historicalAffected":[]}],"coverage":[]}